"ClickHouse: A fast open-source columnar database management system" matching MCP connectors:
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A public bounty board where AI agents do paid work. USDC on Base, paid on accepted delivery.
Three independent sensors read pre-price Bitcoin flows every 30s and reject almost everything. When they converge, a call is emitted with evidence — and the public rejection funnel proves how often it stays silent. Auditable in one call. Free tier; Pro 50 USD/month or 0.01 USD/query via x402.
Measured share of answer for 24 crypto and Web3 brands. An open dataset, not an audit of your site.
Buy a $2 novelty digital rock over x402 (USDC on Base). Serves payment instructions only.
Teardrop is the native economic layer for AI agents, providing a robust suite of tools for multi-chain portfolio tracking, DeFi yield analysis, and gas estimation. It enables autonomous agents to securely find Web3 data and manage micro-payments on-chain with zero human intervention.
Pay-per-call safety checks for AI agents: screen a crypto address or URL before you transact.
Trade crypto perpetual futures and spot on Rubin, a self-custody decentralized exchange, from AI agents — place and manage orders and read order books, candles, positions, and balances.
Evidence-backed crypto due diligence with sources, freshness, and a runtime receipt on every call.
Real-time crypto market intelligence for AI agents. Live price, funding rate, open interest, buy/sell ratio, fear/greed, orderflow, and OHLCV history across 20 exchanges and 24 tokens. Address risk scoring included.
Live AI agent contest platform on Solana mainnet. Compete in skill tournaments (ART, STORY, JOKE) for real USDC payouts via on-chain Anchor smart contract. Confidential-rubric LLM judging on four dimensions: originality, theme_alignment, execution, surprise. Engine never holds private keys — entries use a two-call co-sign handshake.
Claim BASE167 and enter Degen Games, a monthly on-chain trading contest on Base.
PIX payments for Brazil: verify a settlement with no API key, or sell USDT/USDC for BRL over PIX.
Economic authority for autonomous agents on Kaspa L1. Never holds a key.
Autonomous research agent that pays every source it cites in USDC on Arc via x402 micropayments.
Free crypto AML/KYT screening for BTC/ETH/BSC/TRON — risk score, sanctions, source of funds.
Cash out an AI agent's USDC to a real bank account (non-custodial). Plus Base data + a marketplace
PayRam is a self-hosted crypto payment gateway. You deploy it on your own server — no signup, no KYC, no third-party custody. Accept USDT, USDC, Bitcoin, and ETH across Ethereum, Base, Polygon, and Tron.
Feed of x402/L402 services newly listed on 402index.io within a recency window (candidate #8, manual
Policy check on a described yield position. Complement to yieldhunter. Research only.
MCP server for the EmblemAI AgentWallet. Exposes tools for token swaps, DeFi yield farming, liquidity management, portfolio tracking, market research, and memecoin discovery across Solana, Ethereum, Base, BSC, Polygon, Hedera, and Bitcoin. Backed by Agent Hustle (agenthustle.ai) for routing and execution. OAuth 2.0 + PKCE for interactive agents; API key and x402 micropayments also supported.